The many visualizations of dynamic optical coherence tomography

In the last five years, dynamic optical coherence tomography (DOCT) has become a rapidly advancing field of research, which extends OCT to include functional contrast. In conjunction with increasing imaging speed and resolution this technique has broadened the application areas of OCT, unveiling previously hidden structures perceptibly. However, owing to the rapid growth of the field and its parallel development by multiple groups for diverse applications and imaging setups, a wide range of feature extraction metrics and corresponding visualization approaches has emerged. Here, we present an overview of the historical development of DOCT and its predominant algorithms for data evaluation as well as visualization. Recently proposed improvements are addressed, and lastly we highlight some of the applications of DOCT.